Vintage E.G. Stein 16ga.x.60cal External Hammer Pin-Fire CAPE GUN!

not 100% positive on the gauge & caliber; left barrel measures to a CC 16ga. & right side has very heavy rifling and measure to approx. 60 cal. Under forearm release; both hammer mechs work; thin leather sling; 32" Damascus barrels; bone grip behind the trigger; 2-triggers; solid wood; early engraving; no SN#; believe probably Belgium; age unknown but easily from the early 1900s if not late 1800s; check pics for condition; no transfer needed